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<?php $elements = [1,2,3,4,5]; foreach ($elements as $k => &$item) { //.... } $another = [1,2,3,4,5]; foreach ($another as $k => $item) { $item++; } var_dump($elements);
Output for git.master, git.master_jit, rfc.property-hooks
array(5) { [0]=> int(1) [1]=> int(2) [2]=> int(3) [3]=> int(4) [4]=> &int(6) }

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